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Lossless image compression encryption algorithm based on multi-scroll chaotic systems and quadtree coding

delete2026-03-21
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PRE
AI
X
Xiaojun Tong *
C
Chunhui Ye
DOI:10.1016/j.knosys.2026.115820delete
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摘要

摘要

En 中文
图像压缩与加密长期以来一直是数字安全领域的一个重要研究重点。为弥补现有方案在压缩比和密码安全性方面的不足,提出了一种基于多涡卷混沌系统和优化四叉树编码的无损图像压缩与加密算法。首先,设计了一种四叉树编码优化策略,通过减少标记冗余长度,充分挖掘层次化四叉树压缩的潜力,从而实现更高的图像压缩比。其次,构建了一个四维多涡卷混沌系统,并将其生成的伪随机序列与二维Fisher-Yates洗牌算法结合,从而有效增强图像的混淆效果。实验结果表明,相较于当前先进方案,所提出的无损图像压缩算法实现了更高的压缩比和更强的抗密码分析攻击能力,因此在高效安全的图像存储与传输方面展现出更广泛的应用前景。
Keyword:
Lossless image compression
Chaotic systems
Quadtree coding
Image encryption
Cryptographic security

期刊

K
Knowledge-Based Systems
IF:
7.6
论文数:
1.2W
被引数:
4.5W

机构

H
harbin institute of technology
学者数:
8.0W
论文数: 6.6W
被引数: 66
S
Shandong Vocational University of Foreign Affairs
学者数:
11
论文数: 8
被引数: 0
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